package com.sky.service.impl;


import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.SetmealVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.sky.vo.DishItemVO;
import java.util.List;

@Service
@Slf4j
public class SetmealServiceImpl implements SetmealService {

    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;
    @Override
    @Transactional
    public void save(SetmealDTO setmealDTO) {
        final Setmeal setmeal = new Setmeal();

        BeanUtils.copyProperties(setmealDTO,setmeal);

        //向套餐表插入1条数据
        setmealMapper.insert(setmeal);
        Long id = setmeal.getId();
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        if (setmealDishes != null && setmealDishes.size() > 0) {
            setmealDishes.forEach(setmealDish -> {
                setmealDish.setSetmealId(id);
            });
        }
        setmealDishMapper.insert(setmealDishes);
    }
    /**
     * 分页查询
     */
    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(), setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> page = setmealDishMapper.pageQuery(setmealPageQueryDTO);//后绪步骤实现
        return new PageResult(page.getTotal(), page.getResult());
    }
    /**
     * 删除套餐
     */
    @Override
    @Transactional
    public void delete(List<Long> ids) {
        for (Long id : ids) {
            Setmeal setmeal=setmealMapper.getById(id);
            if (setmeal.getStatus() == StatusConstant.ENABLE) {
                throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
            }
        }

        for (Long id : ids) {
            setmealMapper.deleteById(id);
            setmealDishMapper.deleteById(id);
        }
    }
    /**
     * 根据id查找
     */
    @Override
    public SetmealVO getById(Long id) {
        final Setmeal setmeal = setmealMapper.getById(id);
        List<SetmealDish> setmealDishes=setmealDishMapper.getById(id);
        final SetmealVO setmealVO = new SetmealVO();
        BeanUtils.copyProperties(setmeal,setmealVO);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }
    /**
     * 修改套餐
     */
    @Override
    public void update(SetmealDTO setmealDTO) {

        final Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        setmealMapper.update(setmeal);
        setmealDishMapper.deleteById(setmealDTO.getId());
        final List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        if (setmealDishes != null && setmealDishes.size() > 0) {
            setmealDishes.forEach(setmealDish -> {
                setmealDish.setSetmealId(setmealDTO.getId());
            });
            setmealDishMapper.insert(setmealDishes);
        }
    }
    /**
     * 修改状态
     */
    @Override
    public void startOrStop(Integer status, Long id) {

        final Setmeal s = Setmeal.builder().status(status).id(id).build();
        setmealMapper.update(s);
    }
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

}